George l



UNIT-ED.,

" GEORGEIQLIR; FrElAaICEQNEBRASKa o To all whom t may. concern `Be it knownthatl,` GEORGE .Lamm/a citizen of the United States; residin atb Beatrice, inthe county ofrGage andtate of Nebraska have invented a new and useful Mud-Shoe7 ofl which the followingis a specification;

This invention relates to devices ypopularly known as mud shoes', which are at-.

tachments for power-driven rvehicle wheels to enable such a vehicle whenthe wheels be-j come embedded in deep mud to extricate itself under its own power'.A t

primary vobject ofY thisinvention is to y provide such a device which maybe quickly and easily attachedto and? detached from `the vwheels of all motor-driven vehicles7 whether automobiles', motor trucks ormotor provided* with solid or'v cycles, or whether pneumatic tires. fi Another object is `to provide a mud shoe which is'f adjustable for all sizes of solidy or pneumatic'tires, and which grips the juring thesame vin the slightest degree@` Another object of theV invention 'is to produce' a mud' shoe having anextremelyr Y rugged 'construction7` impartingy long-fr service under the most'exacting conditions.4

A 'further vobject is to `constructfthe at-f f tachment so. that it be kfoldedupwhen detached `and thus occupy less sp ace vin `the toolboX.w"l N if# Still another object is toprOvide an hat# tachment which! is simple in c'onstri'ictionl so that if anypart should lbe broken, the' same may be 'duplicated at small' expense byy any blacksmith! With these and other objects vieWf,y this invention consists 1n the :novelarrange` ment, combination and construction of parts as hereinafter described and claimedg In the accompanying drawing, in' whifchfv I have shown thepreferred embodimentof the invention Figure 1'` is an elevation of a segment ofk j an automobile wheel showing my inventionk attached; u if i Fig. 2 is an enlarged vertical/sectional' view. on the lline 2-2 of Fig. LlOOkingin the direction of thev arrow,"showing'thedeL vice partially applied in'positi'on;l y Fig. 3 is a view similar to show` in ythe device completelyfapplled;y ,c f v shoe proper-fi l ig. 4 is a detail perspective view of `r Referring specically to the drawing, y in.l Whichlikenumerals of` reference desig nate likeparts, .10findicates a portion. ofanfauomtobile ywheel having afpneumaticOj 3 tirezapplled thereto. ff'The "mud shoegll,

which preferably made ofl castiron, isV plvotally attachedto and clamped on the l wheel by a clamping means tolbe presently described, said/meansextending fromfthe $5, LIVmud shoe lll, on either side oftheftire andi` J yrimibf thevwheelandoverfthe innerv face ofthe rim.rk Prefe/rabIy,l several of the mud i l shoes are kattached tothe .rear ordriving wheelslof, the zvehicle, .although for; sim-370 i plicit'yr but one is shown in thefdrawing." Theinner `ort`ire-en'gaging face of the mud: o shoe 11 is preferably madeconcave with respectgto bothlitslongitudinal and.transverse`V axes, and is so shown., This concavitye'nf` 75 kables thefshoeito conform to thetread ofy the tire, thus" bringing aboutfak closer-confy "f -nection between ',thejshoegandy the wheel. To insure the greatest 'strength at the points' vofgmostfstrainand'wear, thefshoe is madego of leastthicknessatits tends and a of in- 1 creasingthicknes's-as `the transverse axis 1s approached. *i

.i n Midwayfbetween thejends extendingA o outwardly/from the shoe, yis-a heavy/Vf` shapediinteg'ral to'othorspurz 12, which constitutes a positive anti-slipping g means. Thespur l2'isl made witha knife-edge, so fthatLitwill `bite deepwinto. stiif. and heavy clay.:y Running throughtthe basey of `the spur l2 fisga bore vor passagel 1 3, rwhich, eXf tends transverselyy with' respect to ythe shoe; v Y

From theinnerjfor ltirel-engaging face of y f the shoe koppositethe spur extends arecess" '14; which is countersunkfinto the said -face`,' 9'5 f and has its bottom intersectingithe bore ,13, y` .thusexposing the bore at the tire-engaging facet of ythe shoe."y Besidesy reducing y the weight,rthis recess providesa gripfor y pneumatictires, theair pressure Pwill force is of a diameter less than that of the bore, so

thatfit will turn freely therein. This clamp` Y. ing member is preferably made from a long' eye-bolt bent twice-in the same plane-to form yarms 16 and 17. Arm 16 is curved with respect to the main body of said member115, and is threaded'jonthe end as indicated at 18, while the arm 17 hasan eye 19 at its end, and extends at right angles to the saidmembei-.15. It will be understood that the shoe 11 is'pivotally kmounted on the U-shapedmember15,.and freely swings between the [arms of the latter. i :Slidably mounted on the arm 16 is a ringV the springv21 to bear with the desired. ten-Y sion against the slidable block'20.

Rigidly attached to block 2O is a yoke 23, substantially anelongated U in shape, (Fig. 1). with a cross arm. 'at'its inner end. The yoker23 ris bent inwardly with respect to Vthe shoe at a point intermediate ofits ends, as

indicated at 24. Y Y

" Linked with an eye 19 of arm 17 is theV eye bolt 25, theend 26 ofwhich is threaded A and is pa'ssed'through a hole 27 in a bearing plate128, said plate being secured to the eye bolt 25 by a nut-29 screwed onto the threaded Vend 26. `The'hol'e 27 is larger in diameter than Vthe eye belt; hence the plate considerable freedom of movement upon the eye-bolt 25.

At the opposite end from the hole 2T, the plate 28`is given a bend 30 which is shaped Aclamping Vlever 31`is curved at'its engaginfT endv 372, 'to cooperate with the bendV 36 or the plate 28,'and being pivotally-mounted on thelcross-'arm of the yoke 23, as shown at-33, is able to` turn Vfreely about the same. 0n the other side of thepivot, the lever A31 is curvedin s uchV a way that itsvfree end is r Yspaced awa-v from the'rim when it is in clampingposition. Y

j The mud'shoe is applied to a wheel, as Y shown in Fig'. 2, the tire being seated againstV the 'inner face ofthe shoe 11, and the'two i arms 16,17,7extending on opposite sides of 'the tire and rim. Q rhe plate 23'is passed over? 'ticul'arity the various features `of construc- 120 'tion of the mud shoe, I desire itunderstood theinne-rperipheral surface of the rim and Y laid flat upon the same. The clamping lever 31 has its end-32 engaged with the bend 30 -fofl-therplate, andthe lever is then swung against the plate, as shown in Fig. 3, thus clamping the shoe upon the tire.

From the vforegoing description, it willzbe Vappreciated thatthe present device isiadapt- 'i able not only to solid and pneumatic tires,

'but to various sized and over-sized tires,

both plain tread and non-skid tread. The

'acts to clamp the device upon a wheel with to cooperateV with'a clamping'lever 31.V TheY tension nut 22, the spring 21 is forced against the block v2O,V thus bringing the 70 clamping lever 31 closer to the shoe. it is obvious that Vwhen the clamping'lever Vand' the plate are, forced -closer to the shoe, the device is adapted to Vfit over a smaller tire and rim. lt is also obvious .that when the user once adjusts Athe twonuts as aforesaid, he will not need to make the adjustment; a` second time, unless he desires to use the mud` shoe on a wheel smaller or larger than the one'previously adjustedV for. Finally, it is clear that the use of the spring A21, in'combination withthe clamping, lever 31, notcnly makes the necessary adjustments` fewer, but

a bull-dog grip. 1 S5 The member .15 and the yoke 23y are circularin cross-section and thus cannot cha-fe. or injure the tirewhen clamped about it, whilethe large area of the inner facecof the shoe ll'presents aV largefrictional surface to the tire, does not bind the tire in.l any one place, and makes it impossible to shift-or change the position of the mudshoe upon the wheel. Y

-This inventionY may be carried for emergency use only, whenit will be attached; to the wheels only after the vehicle is actually stuck in the mud, or it may b e used on heavy roads as a preventive against stalling.

A mud shoeis of course subjected to very hard'usage. The constant moist'ure'andV mud might clog` up the bore 13 with lrust and dirt,Y

leo

' and if the shoe were laidyaside for a long time exposed to dampness, the Ushaped member 15 might rust'tight into the bore 13. In suchan event, a little oil or grease introduced through the recess 14C would quickly put' the parts in working order again.

lVhen the-mud shoe is tobe-put awayg-it Y can be partly folded up by bringing -the 11n arms ofthe U-shaped member into substantial alinement with the shoe, and by laying" the eye bolt, plate and clamping lever against either face of theshoe.

. While the mud shoe is made preferably of iron, other metals, such; as aluminum or thevarious-commercial alloys could Vbe ernployed.

`While I have herein describedr with pan` that changes may be made in the form, size, proportion and details of construction,

Vwithin the' scope of the appended claims,l c

grally with the plate, with a borelextend- Aaigem] i ing through the plate from ene side to the other, said plate having a concave inner facey anda recess countersunk in said face exposing the bore, and clamping means mounted in the bore for holdingfthe plate against the tire.

tractionv spur formed integrally therewith,

and a bore running through the plate, a substantially U-shaped member pivotallylmounti ed in the bore, said member having two arms each extending inwardly along either side of the plate, andfadjustableclamping means attached to said arms for holding the shoe onto the wheel.

3. Ak mud shoe' for avehi'cle'wheel con'- sisting of a plate having traction means, a', substantially U-shapedl member pivotallyy connected to the-plate havingytwo arms,

spring tensioning means mounted on one of'vl said arms, and a clamping mechanismhaving a portion connected withrsaid tensioning;

means and another portion connected with the other arm of said'member tofhold saidl` plate onto the wheel. y

el. A mud shoe for a vehicle wheel conv n sisting-oiVV a plate having traction -means, "a substantially U-shaped ,member pivotally connected to the plate having two "arms,ia

block slidably mounted yon one-ofsaid arms, ,e

spring tensioning means mounted on said arm and bearing against '.saidrg'block,` lan f adjusting nut to regulate the -pressure ioi'y said tensioning means against the block, and

a clamping mechanism connected'withrsaid block and the othervarm ofi-,said member to hold said plate vonto the wheel.

' 5' A mud shoe for a vehicle wheelg-ii'f mounted on said plate, said member having two arms, one ofvwhich is curved, a block slidably mounted on the curved arm, a

spring mounted on said arm andbearing against the'block, a nut for adjustingrthe'' spring pressure againstksaidfbloclz, anda clamping mechanism connected with. the f other armto hold saidzshoe block and theV onto the wheel. V

spring tensioning means mounted on said n and-spring tensioningmeans.

.fthe platej* and extending kinwardly Steward rthe rim yof the wheel, :a clamping lever, a

- my own, Ihav'efhereto' ailixed my in the presenceof two witnesses. y l ,A

" f f GEORGE Laune.

curved .arm yand"'bearing against said block,

l andja n clampingdevicej connected to'v the @17. 'Apfmud shoe' fora vehicl stantially U -shaped member pvotally mount-`4 l Wheel coma Y f ,uprising a'plate havingtraction means,l a sub- V2.-A mud shoe for a vehicle wheel con-f sisting of a tire-engaging platev having a" r ed in the vplate,jsaid memberhavingarms, a f

lyoke 'slidably mountedon onearm, aclainp-y ying leverpivotallyfmounted on the end off ","saidV yoke, and meansV connected'withthe vother armiv for engagement with the elamplever tofsecu're 'th'ekshoe onto thewheel.` l

. 8. A lmud* shoe Jorrubber tired vehicle f KVVjwheelscomprising ajplate having traction -means, a'. substantially U-shaped member` f ypivotallymounted inthe plate, a clampingy means 1 adapted to be-pas'sed over'andbear' against :the "rimlof vkthewheelf, `and two distinet coperatng COIncCtin means between the `clamping means `.andjt 1ek plate, located *von either side y of ythej plate,y one of ywhich means is resilient, for adjusting the ,shoeto'fk various sizes `and types yof tires.

'9. A mud shoe comprising a plate having y "ftractionl means and aclamping device for securing saideplate to thetireof awheel,

platey bearing` againstk the rim oi ing tractionfmeans, ya member connected to .85". saiddevice including a clamping lever, avb

the wheel,

plate bearingk against the inner sideV ofi the rim, and' means for Vflexibly .connecting said lever .and plate withfsaid member, said means including a spring vtoy impart tension j thereto.;y i

sisting of a plate having tractionmeanaa: substantially U-shaped.k member pivotal-ly f' jill; Amud shoe lcomprisin a kplate hav-V, ing, traction means, a mem er connected andrv a clamping klever coiniected to said spring tensioningemeans and bearing upon `Intestimony that I claim the `foregoing as S'glatire Witnesses: y n

PeriniPErunen, 'f

`vsaid plate land operatingtohold said plate f .L yagainst 'therim'of'the wheel. 

